Ultra-low Power Multi-sensor Data Logger with NFC Interface

The cold chain monitoring is the process of ensuring a certain product temperature to remain constant upon shipping and distribution. The ultra-low power multi-sensor data logger with NFC interface reference design integrates multiple sensors for cold chain monitoring. The board features wireless communication through RF430CL330H dynamic near field communication (NFC) interface transponder. The TMP112 device is a digital temperature sensor ideal for NTC/PTC replacement and has an accuracy of ±0.5°C. The OPT3001 is an ambient light sensor that measures the intensity of visible light. For humidity measurement, the HDC1000 is a digital humidity sensor with integrated temperature sensor. The board also comes with MSP430 mixed-signal microcontroller. Read more

BTN8982TA DC Motor Controller for Arduino Uno

The BTN8982TA is a half bridge DC motor controller. It is composed of a driver, a p-channel high-side MOSFET, and an n-channel low-side MOSFET. The built-in driver makes the device easy to be interfaced with a microcontroller. It features logic level inputs, slew rate adjustment, diagnosis with current sense, dead time generation, over-temperature protection, under-voltage protection, overcurrent protection and short circuit protection. The BTN8982TA can be combined with other BTN8982TA to form H-bridge and 3-phase drive configurations. Read more

LMH1218 Low Power Ultra HD Cable Driver with Integrated Reclocker

This reference design is an evaluation module that provides a complete high bandwidth platform to evaluate the SDI/UHD and 10GbE signal conditioning. It is an LMH1218EVM evaluation board that especially employs Texas Instruments’ LMH1218 UHD Cable Driver with Integrated Reclocker. It is a low power cable driver with integrated reclocker to drive serial video data to SMPTE-SDI, SMPTE 2022-5/6, 10GbE Ethernet, and DVB-ASI standards. It also supports up to 11.88Gbps to enable Ultra High Definition Video for 4K/8K applications. With 75-Ω and 50-Ω transmitter outputs, the LMH1218 enables multiple media options such as coax, fiber, and FR-4 PCB. Read more

Magnetic Position Sensor

The use of sensors in automotive and industrial applications have dramatically increased, similarly there’s been an increase in number of electrical fields or stray field present in this kind of applications. The magnetic sensors and other sensors are exposed to this stray field that can affect its reliability and system safety. The AS5048 has a stray field immunity that can withstand external stray field. The AS5048 is a 14-bit high-resolution output with 360° angular position sensor that has a maximum system accuracy of 0.05° assuming that the linearization and averaging is done by the external microcontroller. It requires no additional programmer, since a simple programming of the zero position is possible over the interface. Read more

Automotive High-Side Dimming Rear Light

The car lights are significant parts of a car system. The reference design is an automotive high-side dimming rear light. The board is composed of the main component TPS1H100-Q1, high-side power switch with an integrated NMOS power field-effect transistor (FET) and charge pump. The TPS92630-Q1 and TPS92638-Q1, is a three-channel linear and eight-channel linear LED driver, respectively. The reference design also comes with a TPS7B6950, which is a high voltage LDO regulator. The TLC555-Q1 is timer that generates the PWM input for the high-side driver. This reference design uses a body control module (BCM) to supply the rear light system. Read more

Isolated IGBT Gate Driver

The combined high efficiency and fast switching features of Insulated-Gate Bipolar Transistor (IGBT) make it ideal for high current and fast switching applications. On the other hand, a gate driver is the one that accepts low-current input from a controller and produces a high-current drive input for the gate of a high-power transistor that is usually an IGBT. This reference design is an isolated IGBT gate driver, which utilizes ISO5852S from Texas Instruments. The ISO5852S is a 5.7kVRMS, reinforced isolated, IGBT gate driver with split outputs, OUTH and OUTL, providing 2.5A source and 5A sink currents. Read more

T8031 Carbon Dioxide Duct-Mount Transmitter

The T8031 device is one of the smallest duct-mount carbon dioxide transmitters on the market. It can be powered by an AC power supply (18-30VAC RMS 50/60Hz) or a DC power supply (18-42VDC). The device outputs a standard 0-10VDC with respect to the factory calibrated measurement range (0-2000ppm) of the sensor. It has an accuracy of +/-40ppm plus 3 percent of the reading when temperature is 22 degree Celsius. The operating temperature of T8031 should fall between 0 and 50 degree Celsius. The duct air velocity should be also around 0 to 7.5 meters per second. The power consumption of T8031 transmitter is 1.65W peak or 0.65W average. Read more